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Merge commit '9087eaf193b8ce99c41352064a81916fa66adb49'

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* commit '9087eaf193b8ce99c41352064a81916fa66adb49':
  vf_overlay: switch to an AVOptions-based system.

Conflicts:
	doc/filters.texi
	libavfilter/vf_overlay.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
pull/21/head
Michael Niedermayer 12 years ago
parent 8bdb119197 9087eaf193
commit e434ddd4c6
3 changed files with 32 additions and 30 deletions
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  1. 6
      doc/filters.texi
  2. 1
      libavfilter/avfilter.c
  3. 55
      libavfilter/vf_overlay.c

6
doc/filters.texi
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@ -4264,9 +4264,7 @@ Overlay one video on top of another.
It takes two inputs and one output, the first input is the "main"
video on which the second input is overlayed.
This filter accepts a list of @var{key}=@var{value} pairs as argument,
separated by ":". If the key of the first options is omitted, the
arguments are interpreted according to the syntax @var{x}:@var{y}.
This filter accepts the following parameters:
A description of the accepted options follows.
@ -4412,7 +4410,7 @@ ffmpeg -i input -i logo -filter_complex 'overlay=10:main_h-overlay_h-10' output
Insert 2 different transparent PNG logos (second logo on bottom
right corner) using the @command{ffmpeg} tool:
@example
ffmpeg -i input -i logo1 -i logo2 -filter_complex 'overlay=10:H-h-10,overlay=W-w-10:H-h-10' output
ffmpeg -i input -i logo1 -i logo2 -filter_complex 'overlay=x=10:y=H-h-10,overlay=x=W-w-10:y=H-h-10' output
@end example
@item

1
libavfilter/avfilter.c
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@ -676,6 +676,7 @@ int avfilter_init_filter(AVFilterContext *filter, const char *args, void *opaque
!strcmp(filter->filter->name, "lutyuv" ) ||
!strcmp(filter->filter->name, "lutrgb" ) ||
!strcmp(filter->filter->name, "negate" ) ||
!strcmp(filter->filter->name, "overlay" ) ||
!strcmp(filter->filter->name, "format") ||
!strcmp(filter->filter->name, "noformat") ||
!strcmp(filter->filter->name, "resample") ||

55
libavfilter/vf_overlay.c
Unescape View File

@ -36,6 +36,7 @@
#include "libavutil/pixdesc.h"
#include "libavutil/imgutils.h"
#include "libavutil/mathematics.h"
#include "libavutil/opt.h"
#include "libavutil/timestamp.h"
#include "internal.h"
#include "bufferqueue.h"
@ -111,35 +112,11 @@ typedef struct {
int shortest; ///< terminate stream when the shortest input terminates
double var_values[VAR_VARS_NB];
char *x_expr, *y_expr, *enable_expr;
char *x_expr, *y_expr;
char *enable_expr;
AVExpr *x_pexpr, *y_pexpr, *enable_pexpr;
} OverlayContext;
#define OFFSET(x) offsetof(OverlayContext, x)
#define FLAGS AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM
static const AVOption overlay_options[] = {
{ "x", "set the x expression", OFFSET(x_expr), AV_OPT_TYPE_STRING, {.str = "0"}, CHAR_MIN, CHAR_MAX, FLAGS },
{ "y", "set the y expression", OFFSET(y_expr), AV_OPT_TYPE_STRING, {.str = "0"}, CHAR_MIN, CHAR_MAX, FLAGS },
{ "enable", "set expression which enables overlay", OFFSET(enable_expr), AV_OPT_TYPE_STRING, {.str = "1"}, .flags = FLAGS },
{ "eval", "specify when to evaluate expressions", OFFSET(eval_mode), AV_OPT_TYPE_INT, {.i64 = EVAL_MODE_FRAME}, 0, EVAL_MODE_NB-1, FLAGS, "eval" },
{ "init", "eval expressions once during initialization", 0, AV_OPT_TYPE_CONST, {.i64=EVAL_MODE_INIT}, .flags = FLAGS, .unit = "eval" },
{ "frame", "eval expressions per-frame", 0, AV_OPT_TYPE_CONST, {.i64=EVAL_MODE_FRAME}, .flags = FLAGS, .unit = "eval" },
{ "rgb", "force packed RGB in input and output (deprecated)", OFFSET(allow_packed_rgb), AV_OPT_TYPE_INT, {.i64=0}, 0, 1, FLAGS },
{ "shortest", "force termination when the shortest input terminates", OFFSET(shortest), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, FLAGS },
{ "format", "set output format", OFFSET(format), AV_OPT_TYPE_INT, {.i64=OVERLAY_FORMAT_YUV420}, 0, OVERLAY_FORMAT_NB-1, FLAGS, "format" },
{ "yuv420", "", 0, AV_OPT_TYPE_CONST, {.i64=OVERLAY_FORMAT_YUV420}, .flags = FLAGS, .unit = "format" },
{ "yuv444", "", 0, AV_OPT_TYPE_CONST, {.i64=OVERLAY_FORMAT_YUV444}, .flags = FLAGS, .unit = "format" },
{ "rgb", "", 0, AV_OPT_TYPE_CONST, {.i64=OVERLAY_FORMAT_RGB}, .flags = FLAGS, .unit = "format" },
{ NULL }
};
AVFILTER_DEFINE_CLASS(overlay);
static av_cold int init(AVFilterContext *ctx, const char *args)
{
OverlayContext *over = ctx->priv;
@ -720,6 +697,31 @@ static int request_frame(AVFilterLink *outlink)
return 0;
}
#define OFFSET(x) offsetof(OverlayContext, x)
#define FLAGS AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM
static const AVOption overlay_options[] = {
{ "x", "set the x expression", OFFSET(x_expr), AV_OPT_TYPE_STRING, {.str = "0"}, CHAR_MIN, CHAR_MAX, FLAGS },
{ "y", "set the y expression", OFFSET(y_expr), AV_OPT_TYPE_STRING, {.str = "0"}, CHAR_MIN, CHAR_MAX, FLAGS },
{ "enable", "set expression which enables overlay", OFFSET(enable_expr), AV_OPT_TYPE_STRING, {.str = "1"}, .flags = FLAGS },
{ "eval", "specify when to evaluate expressions", OFFSET(eval_mode), AV_OPT_TYPE_INT, {.i64 = EVAL_MODE_FRAME}, 0, EVAL_MODE_NB-1, FLAGS, "eval" },
{ "init", "eval expressions once during initialization", 0, AV_OPT_TYPE_CONST, {.i64=EVAL_MODE_INIT}, .flags = FLAGS, .unit = "eval" },
{ "frame", "eval expressions per-frame", 0, AV_OPT_TYPE_CONST, {.i64=EVAL_MODE_FRAME}, .flags = FLAGS, .unit = "eval" },
{ "rgb", "force packed RGB in input and output (deprecated)", OFFSET(allow_packed_rgb), AV_OPT_TYPE_INT, {.i64=0}, 0, 1, FLAGS },
{ "shortest", "force termination when the shortest input terminates", OFFSET(shortest), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, FLAGS },
{ "format", "set output format", OFFSET(format), AV_OPT_TYPE_INT, {.i64=OVERLAY_FORMAT_YUV420}, 0, OVERLAY_FORMAT_NB-1, FLAGS, "format" },
{ "yuv420", "", 0, AV_OPT_TYPE_CONST, {.i64=OVERLAY_FORMAT_YUV420}, .flags = FLAGS, .unit = "format" },
{ "yuv444", "", 0, AV_OPT_TYPE_CONST, {.i64=OVERLAY_FORMAT_YUV444}, .flags = FLAGS, .unit = "format" },
{ "rgb", "", 0, AV_OPT_TYPE_CONST, {.i64=OVERLAY_FORMAT_RGB}, .flags = FLAGS, .unit = "format" },
{ NULL }
};
AVFILTER_DEFINE_CLASS(overlay);
static const AVFilterPad avfilter_vf_overlay_inputs[] = {
{
.name = "main",
@ -758,6 +760,7 @@ AVFilter avfilter_vf_overlay = {
.uninit = uninit,
.priv_size = sizeof(OverlayContext),
.priv_class = &overlay_class,
.query_formats = query_formats,
.process_command = process_command,

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